Airbag control unit with part number P8635A208

What does the airbag control unit P8635A208 do?

At Mitsubishi, the airbag control unit P8635A208 coordinates the entire restraint system (SRS). It reads the crash sensors, decides in the event of an accident within milliseconds which airbags and seatbelt pretensioners to trigger, and reports faults to the airbag warning light.

During operation, the unit monitors the system without a break. After an accident, it stores crash data and locks itself.

Why does the control unit P8635A208 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool does not delete it. Other possible causes are aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes, for example from a weak battery or a jump start.

The crash data remains stored in the unit, even if no external damage is visible.

Aged components and cold solder joints lead to intermittent faults, because connections give way over time. Moisture and corrosion impair the contact at plugs, and voltage spikes can disturb the electronics.

How can you tell that the P8635A208 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. This is accompanied by an error message, and the diagnostic tool finds no connection to the control unit, because the fault memory cannot be cleared.

Watch for the following signs:

• The airbag warning light lights up permanently or intermittently.
• An error message appears in the instrument cluster.
• The diagnostic tool cannot reach the control unit.
• The fault memory remains after a clearing attempt.

With these signs, the airbags and seatbelt pretensioners may not deploy in an emergency. Have the system checked promptly.

Which vehicles is the P8635A208 fitted in?

The airbag control unit P8635A208 is fitted in these vehicles: Mitsubishi Outlander CW (2006-2010) and CW Facelift (2010-2012).

The following vehicles are listed for this part number:

• Mitsubishi Outlander CW (2006-2010)
• Mitsubishi Outlander CW Facelift (2010-2012)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Whether the control unit is defective or a plug or cable is the cause is shown only by reading out the fault memory, which you should arrange before removal.

For the same vehicles, we also repair control units with the part numbers 285011150, 285011151, 8635A215, 8635A221, 8635A282, 8635A283.

How does the repair of the P8635A208 work?

At Airbag24, testing, repairing and function testing usually take 3–4 working days. On your side the order is fixed: first read out the fault memory, then disconnect the battery, and only then remove the control unit.

Then create the repair order online and send the securely packed unit in. Enclose the fault memory log.

Airbag24 inspects the unit, replaces defective components, deletes stored crash data and carries out a function test. Afterwards your own unit goes back to you.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit P8635A208 get to Airbag24?

You handle the dispatch as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends the unit back to you by UPS.

The printed repair order goes into the parcel, and the unit is packed shock-resistant.